
Certificates & records
22 current record types, review and signature workflows, company numbering and linked warning notices where supported.
Explore gas certificate software ↗Gas and heating certificates, quotes and invoices.
With your company on every document.
Save supported drafts free. Issue numbered documents and download PDFs with the Essential package.
A proper record of the job. Your business details built in.
A4 PDF · COMPANY BRANDEDONE ESSENTIAL ACCOUNT
For UK gas and heating engineers who want their business details on professional paperwork. Prepare supported drafts free, then use the Essential package to issue numbered customer documents and download A4 PDFs.

22 current record types, review and signature workflows, company numbering and linked warning notices where supported.
Explore gas certificate software ↗
Customer details, itemised work, optional VAT, a validity date, notes and terms. Prepare the price, then issue the quote.
Explore quote software ↗
Choose the due date, use saved bank details, or record cash already paid on site with zero balance and no bank details.
Explore invoice software ↗These previews contain fictional details. View the original samples before choosing your paperwork.
YOUR PAPERWORK. FROM START TO FINISH.
Take a guided look around the actual product. Company setup, an optional quote, the record your job needs and an invoice when you need one.
Actual Essential screens · Fictional company and job details
Read the transcriptThe current product tour includes a dated offer and is no longer available. Explore the actual document samples and current Essential pricing below.
Try the tools free. Save supported drafts with a free account. Choose Essential for numbered customer documents, PDF downloads and sending through your connected company email.
YOUR BUSINESS. ON THE PAGE.
Try your company name on a fictional certificate, quote or invoice. No account needed.
Make it yours
Your business, in printPersonalised illustrations
Oakfield Heating Ltd
COMPANY-BRANDED PAPERWORKAPPLIANCE & WORK DETAILS
| Appliance | Location | Record |
|---|---|---|
| Example boiler | Kitchen | Fictional illustration |
Additional notesIllustration of how your business details appear alongside the job information. No inspection, readings or safety assessment have been recorded.
The full Essential form includes its relevant questions, review and signature workflow. This is an abbreviated layout illustration, not a completed certificate.
Oakfield Heating Ltd
COMPANY-BRANDED PAPERWORKITEMISED WORK
| Description | Amount |
|---|---|
| Example service visit | £85.00 |
| Example materials | £45.00 |
Illustrative total£130.00
Validity & termsExample: valid for 30 days. Agree the work before proceeding. VAT has not been added to this illustration.
Oakfield Heating Ltd
COMPANY-BRANDED PAPERWORKWORK RECORDED
| Description | Amount |
|---|---|
| Example service visit | £85.00 |
| Example materials | £45.00 |
Illustrative amount due£130.00
Payment detailsYour saved company payment details can appear on supported invoices. No bank details are entered here. VAT has not been added to this illustration.
Personalised illustrations of document excerpts, not generated customer documents. Open the original A4 samples below to inspect actual Essential output.
No account needed for this preview. Your entry stays on this page: it is not sent or saved. Enter a company name only; all other details are fictional.
Your company and engineer details belong on your paperwork. In Essential, save them in Company setup for supported documents.
Save supported drafts free. Issuing numbered customer documents and downloading PDFs require the Essential package or an applicable access grant. This preview does not create a record or PDF.
Inspect the actual Essential output.These original fictional samples keep their Oakfield details; your preview name does not change the PDFs.
Natural gas + LPG + Unvented + Renewables
LESS REPEATED ADMIN BETWEEN JOBS
Save your business details, choose the engineer and record the work. Essential carries the company information into the certificate, so you can concentrate on the visit details and readings.
Add your trading name, business address, contact information and relevant registration details. New records use your company profile, rather than Essential’s details.
Save your engineers and their licence details. Select the person carrying out the job and carry their information into the document. Up to 2 engineers are included; each additional engineer costs £9.99/month.
Record the appliances, readings and findings, then review the answers. Confirm your answers, record the optional customer acknowledgement, then complete the engineer signature to create a numbered record and its A4 PDF. Keep related warning notices linked.
Your certificate prefix and numbering carry across your company’s records.
Keep customers, saved documents and the original calculator snapshot in one workspace.
Keep editable backups of your records. Calculator PDF and report downloads are included in the Essential package.
YOUR TRADE. YOUR TOOLKIT.
Explore 22 record types across natural gas, LPG, unvented hot water and renewable heating, with your company and engineer details built in.
Oil is deferred. These are original work records, not official scheme certificates. Use the applicable current standards and any required manufacturer or scheme documentation.
IGEM/UP/1B CALCULATOR
Go straight to the standalone IGEM/UP/1B Calculator and calculate without an account. Create your free account to save your results and reopen them when you need them.
FREE ACCOUNT Save results. Reopen your work.
ESSENTIAL PLANPDFs and report downloads included in Essential from £24.99/month for up to 2 engineers.
Also in your toolkit: Free gas rate calculator
A free account saves your results. View subscription and download access in Your account.
Independent Essential tool. Not affiliated with or endorsed by IGEM. The calculation supports a competent engineer and does not replace the full standard or required procedure.
ALL YOUR ESSENTIALS. ONE PACKAGE.
Natural gas, LPG, unvented and renewables, plus quotes, invoices and supported calculator PDF/report downloads. All four modules included in Essential for £24.99/month. Up to 2 engineers are included; each additional engineer costs £9.99/month.
£269.89 upfront for 12 months — 10% less than 12 monthly payments. The base package includes up to two engineers; each additional engineer is £9.99/month or £107.89 upfront per year. Introductory base prices until 31 December 2026. Subscribe before 1 January and keep your introductory base price for as long as your subscription stays active. From 1 January 2027, new base packages cost £31.24/month or £337.36 upfront for 12 months — a 25% increase, rounded to the nearest penny. Additional engineers remain £9.99/month or £107.89/year each.
Published pricing. Choosing a plan creates an account and saves your preference. Free accounts and saved preferences do not reserve a subscription price. Review subscription and payment availability in Your account.
THE DETAILS, UP FRONT
Complete the questions, review and confirm every answer, then record the customer acknowledgement if available. The engineer must sign last before a certificate or PDF can be created. Use the current standards, stay within your competence and check all recorded details. Essential work records do not replace required manufacturer or scheme documentation.
Yes. Up to 2 engineers are included; each additional engineer costs £9.99/month. Save each engineer’s relevant licence details, then select the engineer for each job to include their information in the certificate. Account access and team invitations are managed separately by the company owner.
Yes. The IGEM/UP/1B Calculator has its own dedicated entry point. Your free email account lets you save calculation results and reopen them later. Essential is independent and is not an IGEM-endorsed product.
Calculations are open without an account. A free email account lets you save results and reopen them. Creating PDFs and downloading reports are included in the all-inclusive Essential package at £24.99/month; no separate calculator plan is needed. Up to 2 engineers are included; each additional engineer costs £9.99/month. £269.89 upfront for 12 months — 10% less than 12 monthly payments. The base package includes up to two engineers; each additional engineer is £9.99/month or £107.89 upfront per year. Introductory base prices until 31 December 2026. Subscribe before 1 January and keep your introductory base price for as long as your subscription stays active. From 1 January 2027, new base packages cost £31.24/month or £337.36 upfront for 12 months — a 25% increase, rounded to the nearest penny. Additional engineers remain £9.99/month or £107.89/year each. Subscriptions and payment availability are managed in Your account.
You create your email account, save your plan preference, and follow the company setup steps. Add your business and engineer details so new certificates can use them automatically. Registration saves your preference only. Review and confirm any subscription separately in Your account.
Your free calculator account keeps saved results available to reopen. Calculator PDFs and report downloads are included in the all-inclusive Essential subscription. Editable workspace backups are separate from report downloads. Existing browser-only records still need their original-browser backups before migration; creating an account does not automatically recover them.
PUT YOUR COMPANY DETAILS TO WORK
Set up your company and engineers, then create your next record.
No payment required to register.
FREE ENGINEER TOOLS
Metric meter readings or imperial test dials, m³/h and gross/net heat input in kW. No account needed. The current-page results list is temporary; it is not saved to your account and does not generate a PDF.
Use the free gas rate calculator ↗Free on-screen tightness calculations. Save supported results with a free account; numbered reports and PDF downloads are included in Essential.
Use the free IGEM/UP/1B calculator ↗Bring the available pipe lengths, sizes and meter inputs together in the IGEM tool. Installation volume is distinct from pipe sizing.
Explore gas installation volume ↗Independent tools with stated assumptions and limits. They support the engineer; they do not replace current standards, procedures or competent judgement.
Set up your company and engineers, prepare a supported draft and inspect the samples. Choose a subscription when you need to issue and download customer documents.